大约有 43,000 项符合查询结果(耗时:0.0594秒) [XML]
Find location of a removable SD card
...question is about external SD. How to get a path like "/mnt/sdcard/external_sd" (it may differ from device to device)?
Android has no concept of "external SD", aside from external storage, as described above.
If a device manufacturer has elected to have external storage be on-board flash and also h...
How can I get query string values in JavaScript?
...query strings with string keyed values.
You might want to try locutus/parse_str
console.log(new URLSearchParams('a=b&c=d').toString()); // a=b&c=d
console.log(new URLSearchParams('a=b&c=d').get('a')); // b
console.log(new URLSearchParams('filters[a]=b&filters[c]=d').toString()); // f...
Alarm Manager Example
...anifest.xml:
...
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
...
<receiver android:process=":remote" android:name=".Alarm"></receiver>
...
Code in your class:
package yourPackage;
import android.app.AlarmManager;
import android.app.Pend...
SQL Server Script to create a new user
...AdminName WITH PASSWORD = 'ABCD'
GO
Here is how you create a User with db_owner privileges using the Login you just declared:
Use YourDatabase;
GO
IF NOT EXISTS (SELECT * FROM sys.database_principals WHERE name = N'NewAdminName')
BEGIN
CREATE USER [NewAdminName] FOR LOGIN [NewAdminName]
...
When should I use malloc in C and when don't I?
...
char *some_memory = "Hello World";
is creating a pointer to a string constant. That means the string "Hello World" will be somewhere in the read-only part of the memory and you just have a pointer to it. You can use the string as rea...
Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]
... the only one (NHibernate, ActiveRecord)
http://en.wikipedia.org/wiki/List_of_object-relational_mapping_software
to address the specific questions:
Depends on the quality of the O/RM solution, L2S is pretty good at generating SQL
This is normally much faster using an O/RM once you grok the proce...
What's the difference between EscapeUriString and EscapeDataString?
...)*+,;=
For completeness, the unreserved characters are alphanumeric and -._~
Both methods escape characters that are neither reserved nor unreserved.
I disagree with the general notion that EscapeUriString is evil. I think a method that escapes only illegal characters (such as spaces) and not res...
Strings as Primary Keys in SQL Database [closed]
... @Tom H: ISO County codes DO change. [ en.wikipedia.org/wiki/ISO_3166-1#Editions_and_changes ] As an answer on a related question said [ stackoverflow.com/questions/925266/… ] "For PRIMARY KEY's make sure their uniqueness is under your control"
– Steve Schnepp
...
When should we use mutex and when should we use semaphore
...used for one thread to signal another thread to run.
/* Task 1 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing);
/* Task 2 */
pthread_mutex_lock(mutex_thing);
// Safely use shared resource
pthread_mutex_unlock(mutex_thing); // unlock mut...
scala vs java, performance and memory? [closed]
...he most compact way to do the same thing is:
val bigEnough = array.filter(_.length > 2).flatMap(mapping.get)
Easy! But, unless you're fairly familiar with how the collections work, what you might not realize is that this way of doing this created an extra intermediate array (with filter), and...